
Periodic Table - Ptable
Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups.
Periodic Table of Elements - PubChem
Interactive periodic table with up-to-date element property data collected from authoritative sources. Look up chemical element names, symbols, atomic masses and other properties, visualize trends, or …
Periodic table | Definition, Elements, Names, Symbols, Groups ...
Dec 22, 2025 · What is the periodic table? How many elements are on the periodic table? There are 118 elements on the periodic table. The elements are arranged in order of increasing atomic number, …
PERIODIC Definition & Meaning - Merriam-Webster
The meaning of PERIODIC is occurring or recurring at regular intervals. How to use periodic in a sentence.
Periodic table - Wikipedia
The periodic table, also known as the periodic table of the elements, is an ordered arrangement of the chemical elements into rows ("periods") and columns ("groups"). An icon of chemistry, the periodic …
Periodic Table – Royal Society of Chemistry
The Royal Society of Chemistry's interactive periodic table features history, alchemy, podcasts, videos, and data trends across the periodic table. Click the tabs at the top to explore each section.
The periodic table of the elements by WebElements
The periodic table is an arrangment of the chemical elements ordered by atomic number so that periodic properties of the elements (chemical periodicity) are made clear. The standard form of the periodic …